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/*
Copyright (C) 2000-2006 Paul Davis
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#ifndef __ardour_ladspa_plugin_h__
#define __ardour_ladspa_plugin_h__
#include <set>
#include <vector>
#include <string>
#include <dlfcn.h>
#include <sigc++/signal.h>
#include "pbd/stateful.h"
#include <jack/types.h>
#include "ardour/ladspa.h"
#include "ardour/plugin.h"
namespace ARDOUR {
class AudioEngine;
class Session;
class LadspaPlugin : public ARDOUR::Plugin
{
public:
LadspaPlugin (void *module, ARDOUR::AudioEngine&, ARDOUR::Session&, uint32_t index, nframes_t sample_rate);
LadspaPlugin (const LadspaPlugin &);
~LadspaPlugin ();
/* Plugin interface */
std::string unique_id() const;
const char* label() const { return _descriptor->Label; }
const char* name() const { return _descriptor->Name; }
const char* maker() const { return _descriptor->Maker; }
uint32_t parameter_count() const { return _descriptor->PortCount; }
float default_value (uint32_t port);
nframes_t signal_latency() const;
void set_parameter (uint32_t port, float val);
float get_parameter (uint32_t port) const;
int get_parameter_descriptor (uint32_t which, ParameterDescriptor&) const;
uint32_t nth_parameter (uint32_t port, bool& ok) const;
std::set<Evoral::Parameter> automatable() const;
void activate () {
if (!_was_activated && _descriptor->activate)
_descriptor->activate (_handle);
_was_activated = true;
}
void deactivate () {
if (_was_activated && _descriptor->deactivate)
_descriptor->deactivate (_handle);
_was_activated = false;
}
void cleanup () {
activate();
deactivate();
if (_descriptor->cleanup)
_descriptor->cleanup (_handle);
}
void set_block_size (nframes_t /*nframes*/) {}
int connect_and_run (BufferSet& bufs,
ChanMapping in, ChanMapping out,
nframes_t nframes, nframes_t offset);
std::string describe_parameter (Evoral::Parameter);
std::string state_node_name() const { return "ladspa"; }
void print_parameter (uint32_t, char*, uint32_t len) const;
bool parameter_is_audio(uint32_t) const;
bool parameter_is_control(uint32_t) const;
bool parameter_is_input(uint32_t) const;
bool parameter_is_output(uint32_t) const;
bool parameter_is_toggled(uint32_t) const;
XMLNode& get_state();
int set_state(const XMLNode& node);
bool save_preset(std::string name);
bool has_editor() const { return false; }
int require_output_streams (uint32_t);
/* LADSPA extras */
LADSPA_Properties properties() const { return _descriptor->Properties; }
uint32_t index() const { return _index; }
const char * copyright() const { return _descriptor->Copyright; }
LADSPA_PortDescriptor port_descriptor(uint32_t i) const { return _descriptor->PortDescriptors[i]; }
const LADSPA_PortRangeHint* port_range_hints() const { return _descriptor->PortRangeHints; }
const char * const * port_names() const { return _descriptor->PortNames; }
void set_gain (float gain) { _descriptor->set_run_adding_gain (_handle, gain); }
void run_adding (uint32_t nsamples) { _descriptor->run_adding (_handle, nsamples); }
void connect_port (uint32_t port, float *ptr) { _descriptor->connect_port (_handle, port, ptr); }
private:
void* _module;
const LADSPA_Descriptor* _descriptor;
LADSPA_Handle _handle;
nframes_t _sample_rate;
LADSPA_Data* _control_data;
LADSPA_Data* _shadow_data;
LADSPA_Data* _latency_control_port;
uint32_t _index;
bool _was_activated;
void init (void *mod, uint32_t index, nframes_t rate);
void run_in_place (nframes_t nsamples);
void latency_compute_run ();
};
class LadspaPluginInfo : public PluginInfo {
public:
LadspaPluginInfo () { };
~LadspaPluginInfo () { };
PluginPtr load (Session& session);
};
typedef boost::shared_ptr<LadspaPluginInfo> LadspaPluginInfoPtr;
} // namespace ARDOUR
#endif /* __ardour_ladspa_plugin_h__ */
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